Merge pull request neetcode-gh#1447 from daredev127/104-Maximum-Depth-of-Binary-Tree

Created 1299-Replace-Elements-With-Greatest-Element-On-Right-Side.cs

Author: Ahmad-A0

csharp/1299-Replace-Elements-With-Greatest-Element-On-Right-Side.cs

@@ -0,0 +1,11 @@
+public class Solution {
+    public int[] ReplaceElements(int[] arr) {
+        int max = -1;
+        for(int i = arr.Length-1; i >= 0; i--) {
+            int newMax = Math.Max(arr[i], max);
+            arr[i] = max;
+            max = newMax;
+        }
+        return arr;
+    }
+}